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D1523

N,N′-Diacetylchitobiose

≥96% (HPLC)

Synonym(s):

2-Acetamido-2-deoxy-4-O-(2-acetamido-2-deoxy-β-D-gluco­pyranosyl)-D-glucopyranose, 4-O-(2-Acetamido-2-deoxy-β-D-glucopyranosyl)-2-acetamido-2-deoxy-D-glucose, Chitobiose

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About This Item

Empirical Formula (Hill Notation):
C16H28N2O11
CAS Number:
35061-50-8
Molecular Weight:
424.40
UNSPSC Code:
12352201
NACRES:
NA.25
PubChem Substance ID:
24893467
MDL number:
MFCD00077715
Beilstein/REAXYS Number:
61689
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Quality Segment

200

assay

≥96% (HPLC)

form

powder

optical activity

[α]/D 15.00 to 19.00 °, c = 9.00-11.00 mg/mL in water

color

off-white

mp

245-247 °C (lit.)

solubility

H2O: 49.00-51.00 mg/mL, clear, colorless

storage temp.

−20°C

SMILES string

CC(=O)N[C@H]1C(O)O[C@H](CO)[C@@H](O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2NC(C)=O)[C@@H]1O

InChI

1S/C16H28N2O11/c1-5(21)17-9-13(25)14(8(4-20)27-15(9)26)29-16-10(18-6(2)22)12(24)11(23)7(3-19)28-16/h7-16,19-20,23-26H,3-4H2,1-2H3,(H,17,21)(H,18,22)/t7-,8-,9-,10-,11-,12-,13-,14-,15?,16+/m1/s1

InChI key

CDOJPCSDOXYJJF-CBTAGEKQSA-N

Application

Diacetylchitobiose/Chitobiose, a dimer of β(1,4) linked N-acetyl-D glucosamine, is used as an alternative source of N-acetylglucosamine by some bacteria. It is used in fermentation research to study, differentiate and characterize chitobiose transporter systems and enzymes such as β-N-acetylglucosaminidase(s) and chitobiose phosphorylase(s).

Biochem/physiol Actions

In chitinolytic bacteria, such as Vibrio, Streptomyces and Serratia, N,N′-Diacetylchitobiose (GlcNAc2) is not only a major breakdown product of chitinase, but it is also the smallest substance that induces chitinase production. It can also be utilized as a carbon source by E. coli, which does not express chitinases, but is exposed to GlcNAc2 produced by intestinal chitinolytic bacteria. In most organisms, the uptake of GlcNAc2 occurs via the phosphoenolpyruvate:glycose phosphotransferase system (PTS). GlcNAc2 has also been used as a substrate or inhibitor to study the activity of glycolytic enzymes.

Preparation Note

Prepared by the method of Barker, S.A., et al., J. Chem. Soc., 2218 (1958).

Other Notes

To gain a comprehensive understanding of our extensive range of Disaccharides for your research, we encourage you to visit our Carbohydrates Category page.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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